Machine for jointing lumber.



No.4 676,942. Patented lune 25, 190|.

w. Al Fmsnoox.

MACHINE FOR JOINTING LUMBER.

(Application 'filed Feb. 26, 1900.)v

1m: mums PETERS co., vnovounco., wAsnuqorou. nA c.

No. 676,942. Patented .lune 25, |9OI.

' W. A. FIRSTBROUK.

MACHINE FOR .IDINTING LUMBER.

(Application led Feb. 26, 1900.) (No Model.) I l0 Sheets-Sheet 2r Www ' No. 676,942. Patented June 25, I90I.

' W. A. FIRSTBRK.

MACHINE FORJINTING LUMBEH.

4(Application led Feb. 26, 1900.) (No M odel.) I0 Sheets-Sheet 3:.

v-Illlllll No. 676,942. Patentd lune 25, 190|.

W. A. FIBSTBRDUK.

MACHINE FOR .IJINTING LUM'BER.

(Application med 'ren 2e, 1900.) (No Model.) l0 Sheets-Sheet 4.

m: cams vncns co. motauwo, WASHINGTON. o. c.

No. 676,942. lPatnte'd lune 25, |90I.

W. A. FIHSTBROK.

MACHINE FUR, .IGINTING LUMBER.

, (Application me@ Feb. 26, 1900,) (No Model.)

I0 Shes ts-Sheet 5.

)Huma/Anm@ Nonms Parent co. moro-umu. wAsulNoron, u4 c.

No. 676,942. Patented .lune 25, I90l.

w. A.' FmsTBnouK. y MACHINE FR-J0|NT|NG LUMBER.

(Applicaticn flied Feb. 26, 1900.)

(No Modell) m sheets-sheet s.

s Nonms Pnsns co. moraumm v/ Asumnmm n. c.

No. 676,942. Patented lune 25, 190|.

W.A. FIRSTBROK.

MACHINE FUR JUI'NTING LUMBER.

` (Apllietion med Feb. 2a, 1900.) (No Model.) l0 Sheets-Sheet 7.

'L'ncssem p, Jaz-Vahr.' Ima am J'z'rsfmo@ pas awfamgfs, l

1m: omas Evans ce. pnmaumu.. wxsumawn, a. c.

'No. 676,942. Patented lune .25, |90I.

W. A. FIRSTBRODK.

MACHINE FOR JUINTING LUMBER.

(Application med Feb. 2e, 1900,) (No Model.) l0 Sheets-Sheet 8.

jm: Nom-us mais co. moruuwo. wnnmcaun. n. c.

No. 676,942. Patented lune 25, |901.

w. A. Fms'TBmmK. MACHINE FUR JINTING LUMBER.

(Application filed Feb. 28, 1900.) (No Model.) l0 Sheets-Sheet 9n No. 676,942. Patented Junezs, mol.

w. A. Fms'rsnoox.

MACHINE FOR JUENTING LUMBER.

(Application filed Feb. 26, 1900.)

,mi Noam rrrzns 00,. mom-umu. wAsnmovon. u. c

Nrrnl Sterns Artnr trice..

VILLIAM A. FIRSTBROOIQ'OF TORONTO, CANADA.

MACHINE FOR JOINTING LUMBER.

SPEGIFLOATEON fming part 0f Letters Patent N0. 676,942, dated June 25, 1901.

Application iiled February 26, 1900i Serial No. 6,523. (No model.)

BROOK, a citizen of'the Dominion of Canada,

residing at Toronto, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Machines for Jointing Lumber, of which the following is a full, clear, and exact description.

My invention relates to j ointing-machines, and more particularly to machines for jointing lumber either by tongue-and-grooving or bydovetailing or similar means of union.

My invention further relates to jointingmachines wherein the sections or strips of lumber are automatically fed into themachines, dressed and jointed from the rough, and jointed so as to constitute a sheet of lumber the width of which is determined by the length of the sections or strips of lumber used, and the length of which may be indelinitely extended. Y y

My invention relates also to a jointing-machine in which the lu mber is jointed and glued in place.

To these ends my invention consists of the` several combinations hereinafter described and claimed, whereby the strips or sections of lumber sawed to uniform length are automatically fed into the machine, one after another, dressed and prepared upon `the one edge and then upon the other, and then successively united in the manner hereinafter described and, if desired, glued at the same time, the entire series of operations being successive, automatic, and constituting a substantially continuous process.

My invention further consists of such mechanism as is required to render the machine capable of utilizing lumber of varying widths and strips or sections in which the edges are not necessarily parallel and strips or sections of varying thickness.

The several purposes and advantages of my invention will be evident from the following description and reference to the drawings herewith, consisting of ten sheets, in which like letters refer to like parts.

Figures l, 2, and 3, taken together, constitute a side elevation of the machine, the vertical broken lines indicating the points of union between the several sheets of drawings. Fig. et is an end elevation of the end shown in Fig. l. Figs. 5, 6, and 7, taken together, constitute a plan View of the machine, the transverse broken lines indicating the points of union between the several sheetsof drawings. Fig. 8 is a Vertical cross-section on the linea: a: of Figs. 2 and 6, omitting those parts which would normally show in elevation upon the view to avoid confusion of parts. Fig. 9 is an enlarged detail view of a portion of the tread-rolls, the casing or frame supporting the same being cut away the better to show the attendant mechanism. The broken lines shown upon this sheet correspond to those upon Figs. 2 and 6, marked yy. Figs. 10 and ll are respectively detail end and side views of my double-acting air-cylinders, these views being of the cylinder which actuates the set-over mechanism shown in Figs. l, 4t, and 5.

In the drawings when expedient to do so unimportant parts of the construction have been cut away to show the mechanism otherwise hidden. l will now proceed, rst, to point out the several principal parts of the machine; second, to explain generally the several principal operations performed, and, third, to eX- plain in detail the several parts of my mechanism and the method of operation.

First. The principal parts are as follows:

A and A are respectively the end bedplates.

B is a heavy truss mounted upon the bedplates A and A', which, together with the bedplates A and A', constitutes the general bed and frame of the machine. The truss B is supported also, as shown in Fig. 2f, by the frames which carry the jointing mechanism hereinafter described.

Journaled to the bed-plate A is a drivingshaft O, which may be driven in any desired manner-as, for example, by belt and pulley, as indicated in the drawings. Keyed to this shaft is a spur-gear D, which meshes with a spur-gear E, which is keyed to a shaft F, which is also journaled to the bed-plate A.

Mounted in rotation with the shaft F is a spur-gear G, which meshes with alarger spurgear H, which is keyed to a shaft I, journaled to the bed-plate A. n

Mounted in rotation with the shaft I is a polygonal drum J ,whicl1,actin g as a sprocket- IOC) wheel, imparts motion to the endless traveling bed K. At the opposite end of the machineis a similar polygonal drum L, (clearly shown in Fig. 3,) which is mounted upon a shaft M, journaled in the bed-plate A. This drum carries the endless traveling bed K. The traveling bed K is made up of sections pivoted together, each section corresponding in length to the length of the polygonal sections of the drums J and L. The traveling bed K passes over the fixed bed B and is thereby made to travel upon a horizontal plane as to its upper surface. This construction affords a continuously-traveling horizontal bed, u pon which and by which the lumber is carried through the several operations.

N is a box or frame secured to the bed B at its sides and at its inner end having suficient free space over the traveling bed K to allow a single section or strip of board to be carried forward by the traveling` bed.

O is a set-over actuated by an air-cylinder P, which forces the strip or piece of incoming lumber up against stops secured to the bed B preparatory to being firmly gripped by the tread-rollers.

Q is a series of tread-rollers which hold the lumber down firmly in place upon'the traveling bed while it is being dressed, dovetailed, or matched upon one edge.

R isv a pair of jointers which dress and joint one edge of the piece of lumber as it is carried forward on the bed K.

S is a set-over actuated by an air-cylinder T, by which the piece of lumber, dressed and jointed upon one edge, is now forced over upon the traveling bed K until the undressed and unjointed edge rests iirmly against stops secured to the bed B4 preparatory to being firmly gripped by a second series of treadrollers.

U is a series of tread-rollers which hold the lumber down firmly in place upon the traveling bed while it is being jointed and dressed upon its second edge by the jointers R. V is another series of tread-rollers which hold the section of lumber down firmly in contact With the bed K while it is being driven into joint with the preceding section of lumber, as hereinafter more fully described.

XV is a set-over actuated by the air-cylinders X, by which a jointed section of lumber is set over until its first jointed edge is in mesh with the second jointed edge of the next following section.

Y is a pivoted clamp, which shuts down upon and holds each section while the next succeeding section isdriven into joint with it.

Z is a gluing-roll which coats the edge of the incoming section as it is driven to place.

Second. The m ode of operation is as follows: Power being applied to the shaft O, the traveling bed K is set in motion. A stack of lumber is placed in the box `\T. The bottom piece or section is carried forward and shoved up to place by the iirst set-over O, so that its edge, Whatever its position with reference to the opposite edge,will be dressed and jointed true.

Thereupon it is held down firmly by the first.

'forward under the third set of tread-rollers and the second jointed edge coated with glue, (if the pieces are to be glued together.) Thus carried forward, the second jointed edge of this piece or section is exactlyin line or mesh with the first jointed edge-of the preceding section, which has been shoved to place, as hereinafter described, and which is held firmly by the clamp Y. The forward action of the traveling bed K thus slides the two meshing joints together until the incoming section is even-ended with the section held down by the clamp. Thereupon the clamp releases its grip and the set-over W shoves the section just jointed over until its first jointed edge is in line with the second jointed edgeh of the next followingpiece, and the clamp grips it fer the next jointing. Thus it will be seen in a general way how the operations proceed and that the several operations are automatically successive and continuous, the sections following each other rapidly and under such adjustment that great speed and economy are attained; but these features will appear the more clearly when the detail mechanism is indicated, the important features to be noticed being, in addition to those above noted, that the strips or pieces are not jointed to the edges, which are necessarily parallel, thus making a large saving in lumber.

IOO

IIO

Third. The details of the mechanism are as follows:

Referring to the endless traveling bed K, the sections are pivoted together, as heretofore mentioned. By reference to Fig. 8 it will be seen that these sections are provided with V-shaped projections K', parallel to their length, which travel in corresponding V- shaped grooves B' in the bed B. The traveling bed K is providedwith openings K2 and K2. The openings K2 are in line with the series of tread-rollers Q, and the openings K3 are in line with the tread-rollers U. Pivoted in these openings K2 and K3 are lugs K4 and K5, provided with lever-arms and trolleys K6 and K7. Helical springs secured to the arms and to the section of the bed K tend to throw the arms out of parallel with the bed-section, and consequently throw the lugs K4 and K5 downward in the openings K2 and K3. Each series of lugs has its trolleys mounted alternately right and left, as clearly shown in Fig. 8. Secured to the bed B are Xed tracks B2 and B3. These tracks will be mounted bythe IZO approaching trolleys which are extended outwardly-that is to say, by every other trolley, so that these fixed tracks will throw up every other lug. The track B2 begins at a point so as to throw the lugs K4 up above the surface of the traveling bed K in time to strike the rear end of a section of lumber in the box N, and this track terminates at a point where it will drop the lugs K4 down out of the way just as the second set-over S shoves the piece of lumber over in line with the lugs K5. The track B3 beginsat a point where it will throw up the lugs K5 in time to engage the piece of lumber as soon as it is placed by the set-over S, and continues until the lugs have carried the piece to place in joint with the preceding piece. ln this way only every other lug is thrown into use, and

this is the method of operation Where the length of lumber is long. When shorter sections are being jointed, the other lugs are thrown into action in this manner. Mounted upon the bed B are movable tracks B4 and As shown in Fig. 8, these tracks are in this position when only every other lug is operating. Mounted rotatably, but secured against axial movement, upon the bed B are threaded rods B6 and B7. (See Fig. 6.) These threaded rods engage, respectively, with the movable tracks B4 and B5, and the several rods BG are for convenience provided with sprocket-andchain connections, so that they may be rotated simultaneously from a single handwheel, and the several rods B7 are similarly connected. Hence by these rods the movable tracks B4 and may be moved trans-` versely upon the bed B, so that the trolleys K0 and K7, which turn inwardly, will mount them, and thus throw all of the lugs into action.

Referring now to the set-over O, as clearly shown in Fig. 7, O/ is a cross-head which travels upon the ways O2, secured to the bed B of the machine. Secured to the cross-head O are rectangularly-shaped shovers O2. The cross-head O is so pivoted to guide-blocks upon the ways O2 that in action it may depart somewhat from a position parallel to the bed K. The shovers O2 are calculated to pass freely over the surface of the bed K. Centrally to said cross-head is pivoted the eX- nects with an oil dash-pot P2.

tended end P of the piston-rod of the aircylinder P. A second piston-rod P2 is similarly pivoted to the cross-head O/ and con- The function of the dash-pot Pgis to prevent the too-rapid movement of the piston-rod P'. The dashpot P2 has the ends of its cylinder connected by piping P4, through which the oil may pass over from one to the other, and which piping is provided with a valve which serves to regulate the rapidity of flow of the oil from one end of the cylinder to the other, and consequently regulates the rapidity of the action of the piston-rod P".

Upon the shaft M is mounted a disk M', provided with inwardly-projecting lugs M2.

Pivoted to the base A/ is a double lever M3, which at its lower end comes in contact with said lugs M2 and at its upper end is pivoted to a connecting-rod M4. This connecting-rod in turn, through an offset M5, connects with a rod M6, which trips the cut-od of the aircylinder P. Thus the action of the cylinder P is synchronized to the action of the traveling bed K and at regular intervals actuates the set-over 0, which intervals correspond to the frequency of entrance 0f sections of lumber to be brought to place. The lower end of the lever M3 is provided with a block or lug to engage with the lug upon the disk M", witha concavcd bearingface of sufficient length to continue the throw of the rod actuating the valve of the cylinder P a sufficient time to permit of the complete forward action of the set-over. By doubling the number of lugs M2 upon the disk M the frequency of action may be rendered changeable to correspond with that of the lugs KLl and K5 and for like reasons. It will be noted that with the crosshead O capable of a slight swinging action upon the ways O2 and the piston-rod P of the air-cylinder being pivotally secured thereto the pushers OS Will engage with the edge of an incoming section of lumber, regardless of parallelism or evcnn ess of edges, and bring it to place ready for jointing upon the rst edge. It will be understood, however, that a common supply of air-pressure, produced in any desired manner, actuates all ofthe valves.

Referring to the tread-rollers Q, it will be noted that each roller has an upwardly-projecting stem Q, which passes through a crosshead Q2 which is secured to studs 3 secured to the frame carrying said rollers. A helical spring is interposed between said cross-head Q2 and the bearing-block of said rollers,which tends to force the roller down, giving it a constant tread upon the lumber passing underneath it; but it is at once evident that in order that the set-over O may operate the rollers Q, must be raised bodily out of contact with the board strip traveling under them. This construction is seen by reference to Figs. 2, 3, and 9. A frame-support B2, supported on brackets BS, secured to the bed B, carries an internal frame Q4. The rollers are yieldingly supported in this frame, as before described. Mounted upon the frame B2 are brackets Q5, to which are pivoted bell-crank levers Q6, the upper members of which are connected by rods Q7. The lower members connect with rods QS, which are pivoted to the frame Q4. By the action of these levers the entire frame Q1, carrying with it the rollers, frees the rollers from contact with the lumber.

Referring now to the disk M/ upon the shaft M, a double lever M7 is actuated by the lugs M2 and in turn actuatcs a rod MS. This rod MS trips the cut-olf of an air-cylinder Q9, which is connected to a lever-arm Q10, which is secured to one of the bell-crank levers Q6. The action of this cylinder being synchro- IIO nized to that of the bed K and the set-over O, the rollers are raised free from the lumber at the instant the set-over is to act, and by adj ustment of the lever M7, as described with reference to the lever M2, the frequency of action may be coordinated thereto.

The jointers R and R are of well-known construction. In the drawings I have shown jointers for making a dovetail joint. They consist of two cutter-heads in each instance mounted upon shafts in bearings properly adjustable and are provided with belt-pulleys. Power is applied in the usual manner, and any desirable form of joint may be made by proper construction of the cutter-heads.

The pair of tread-rollers adjacent to the jointers R should not be made to raise and lower with the rollers Q, but -should have a continuous tread at all times. The same is true of the tread-rollers adjacent to the jointers R. They should not be connected with the tread-rollers U, but have a continuous tread, as is the case with the series V.

The construction and operation of the treadrollers U and of the set-over S are identical with those of O and Q. The rods tripping thel valves of the air-cylinders are actuated by mechanism identical with that described in connection with the cylinders P and Q", a disk on the shaft I serving the same purpose as the disk M on the shaft M.

Referring now to the gluing device Z, Z7 is a disk pivoted to a bracket on the bed B. The edge of this disk is grooved to conform to that of the edge of the lumber coming in contact with it. A second disk Z2 is in frictional contact with the disk Z and is pivotally mounted. at an angle of forty-five degrees, witha bevel edge to the same degree. The lower side of the disk Z2 dips into a glue-pot, which may be warmed in the usual manner. The friction of the disk Z against the incoming piece of luniberis sufficient to rotate the same,

and the friction of the disk Z against the disk Z2 is sufficient to rotate it and to cause it to carry up the glue from the glue-pot into which it depends; but any of the well-known forms of gluing mechanism may be substituted for the simple device which I have thus briefly described.

Referring now particularly to Figs. l, 4, 5, 10, and ll, I will describe the'detail construction of the setover WV and the air valve actuating the same, and the clamping mechanism Y. The set-over mechanism consists of ways WV', mounted transversely upon the body of the machine, which carry a cr0ss-head V2. Secured to this cross-head W72 are shoving-blocks, which act the same as the shovingblocks particularly described in connection with the set-over O. Pivoted to the frame of the machine is a rack W3, which meshes with a pinion W4, mounted upon a shaft journaled to the frame of the machine. Secured to the shaft carrying the pinion W4 are pitman-heads W5, to which are pivoted pitmen W5, which at their outer ends are pivoted to the crosshead W2. The piston X of the cylinder X is secured to a slide-block X2 upon the frame of the rack W3. Secured to the shaft I is a disk l, similar in construction to the disk M', already described, and provided with lugs I2. A bell-crank lever X2, which is clearly shown in Fig. l0, engages with the lugs I2 and is actuated similarly to the levers MS and M7, heretofore described. The upper member of the bell-cran k lever X3 is connected to the valve X4 of the cylinder X in such manner as to admit the air to said cylinder, so as to force the piston inwardly when the valve X4 is tripped by the lug I2 coming in contact with the lever The lower end of the piston vof the Valve X4 is provided with a block X5, which when raised bythe action 0f the lever X2 locks with 'a block X6, secured to the frame of the machine and held inwardly by a spring action. The block X6 is mounted upon a rod X7, which is pivoted to a double lever X8, which is pivoted to a bracket secured to the frame of the machine. Secured to the guide-block X2 of the rack W3 is a guide-rod X9; When the rack W3 is forced inwardly by pressure in the cylinder' X, the guide-block X2 is carried inwardly and strikes the upper arm of the lever XS, draws the rod X7 outwardly, and releases the locking-blocks X5 and X6, whereupon the piston of the valve of the cylinder X is carried downward by spring action, the air reversed, and the piston of the valve X is forced outwardly, carrying the rack outwardly to the position shown in Fig. 4. Thus it will be seen that the action of the rack is synchronous to` the action of the shaft I, which is synchronized to the other parts of the machine through the endless bed K. It will be noted that the throw of the set-overby this construction is absolutely and accurately determined whatever' the speed or throw of the rack NVS, because if the action of the rack carries the pitmen W6 past the center it will result in the withdrawal of the set-over rather than to extend its action, and it will be noted that it is most essential and important that this action should be absolutely accurate in order that the piece of material driven to place is set over exactly to the line to receive and joint with the next incoming piece.

Referring now to the clamping mechanism Y, pivoted upon a shaft Y are heavy arms Y2, which extend transversely over the body of the machine and the under sides of which bear downwardly upon the clamping-block Y. At either end the clamping-block Y is provided with springs YB, which add the necessary force to hold the material underneath it down iirrnly while the next succeeding or incoming piece is being joined to it. It is levident that this clamping device must be raised and lowered synchronously with the other portions of the machinethat is to say, it must be raised when the set-over W acts to shove the material over and must be lowered for the purpose of clamping the lumber before the next succeeding piece begins to come to IOO IIO

joint with the piece clamped. To perform this operation, I provide the outer ends of' the arms Y2 with arms Yl, which take over the upper ends of the pistons of the pair of cylinders Y5. These cylinders Y5 are actuated by mechanism connecting with and actuated by the lugs l2 upon the disk I', substantially the same as the valves of the cylinders actuating the tread-rollers heretofore described are actuated and operated.

In order to prevent the incoming piece from being shoved too far by the lugs of the bed K, I provide a block a, which is mounted in ways upon a bed secured to the frame of the machine, so that the upper surface of the bed is in the same plane as the upper surface of the traveling bed K. This block ct is provided with a hand-wheel and screw b, by which it may be moved lengthwise upon the bed to adjust it to the different lengths of materials which may be jointed, and it is also provided with a recoil-spring c, which will allow it to give a cert-ain amount to meet the variations in lengths of the incoming pieces and prevent shock, which will occur if it is unyielding.

Having thus described my invention, what I claim isl. In ajointing-machine, a fixed bed, a traveling bed, means for actuating the same, means for holding the sections of lumber to be jointed longitudinally upon said traveling` bed, comprising a plurality of tread-rollers, jointing mechanism for successively jointing the opposite edges of the lumber, and means for moving said lumber-sections transversely upon the plane of the bed to bring the edges of the sections successively into line with the jointers, substantially as and for the purposes set forth.

2. In ajointing-machine, a fixed bed, a traveling bed, means for actuating the same, means for holding the sections of lumber to be jointed longitudinally upon said traveling bed comprising a plurality of tread-rollers, jointing mechanism for successively jointing the opposite edges of the lumber, means for moving said lumber-sections transversely upon the plane of the bed to bring the edges of the sections into line with the jointers successively, and means for reciprocating said tread-rollers to permit of such transverse movement of the lumber-sections, substantially as and for the purposes set forth.

3. In a jointing-machine, a fixed bed, a traveling bed and means for actuating the same, reciprocating lugs for engaging the lumbersections in their forward movement, reciprocating shovers for moving said lumber-sections transversely upon and in the plane of said moving bed into line with `the j ointers, jointers for jointing the opposite edges successively, a reciprocating shover for `moving the jointed lumber-sections from said traveling bed to said fixed bed into line for jointing with the next following section, and means for holding said section on said fixed bed in place while the next following section is being driven into joint with it, substantially as and for the purposes set forth.

4. In a jointing-machine, in combination Awith a fixed bed and a traveling bed a reciprocating shover and means for actuating the same for moving a section of lumber in the plane of and transversely from said traveling bed to said fixed bed to bring the edge first jointed into line with the second jointed edge of the next following section, and means for holding said section on said fixed bed while the next following section is driven to joint with it, substantially as and for the purposes set forth.

5. In a jointing-machine, a fixed bed and a traveling bed, a jointer for jointing the rst edge of an incoming section, means for holding said'section by pressure in contact with said traveling bed, means for moving said section transversely on said traveling bed after it is jointed upon the first edge, means for bringing the second edge into line with the second jointer, a jointer for jointing the second edge, means for holding said section by pressure in contact with said traveling bed while being jointed on its second edge, means for moving said section transversely from said traveling bed after the second edge is jointed to bring the first jointed edge into line to unite in joint with the next following section, and means for holding said section in place upon said fixed bed while the next following section is coming to place in joint with it, substantially as and for the purposes set forth.

6. Theherein-described apparatus forjointing sections of lumber, consisting of a ixed bed, a continuously-traveling bed, j ointers in continuous rotation, reciprocating mechanism for holding the lumber-sections by pressure in contact with the traveling bed while in process of jointing, reciprocating mechanism for bringing the edges of the lumber-sections in line for jointing, reciprocating mechanism for holding a jointed section in place upon said fixed bed while the next succeeding section is driven into joint with it, and reciprocating mechanism for bringing the first jointed edge of the section j ust driven to joint into line for jointing with the second jointed edge of the next succeeding section, the action of said reciprocating parts being governed by the action of said traveling bed, substantially as and for the purposes set forth.

7. In a jointing-machine, a traveling bed, a set-over forbringing the edges of the sections of lumber into line with the jointers, consisting of a vtransverse reciprocating head, an air-cylinder, the piston of said air-cylinder connecting with said cross-head, and a trip actuating mediately or immediately by the said traveling bed, timing the action of the set-over to the action of the traveling bed, substantially as and for the purposes set forth.

8. Ina jointing-machine, a traveling bed, a set-over, consisting of a reciprocating transverse cross-head, an air-cylinder, a piston IOO IIO

` ver, and connecting-rods communicating the action of said lugs upon said disk tothe valve of said air-cylinder, timing the action of said air-cylinder to the action of the traveling bed, substantially as and for the purposes set forth.

9. In a jointing-machine, a traveling bed, a series of tread-rollers, yieldingly mounted upon the frame of the machine, and calculated to travel upon the upper surfaces of the lumber-sections as carried forward upon the traveling bed, and means for automatically raising said series ot' tread-rollers bodily out of contact with said lumber-sections, and means for returning the same to place, said actions being timed to the action of the traveling bed carrying the sections of lumber forward, substantially as and for the purposes set forth.

10. In a jointing-machine, a traveling bed,

a series of tread-rollers, yieldingly mounted upon the frame of the machine, and calculated to travel upon the upper surfaces of the lumber-sections as carried forward upon the moving body of the machine, and means for throwing said tread-rollers bodily in and out of contact with said lumber-sections,4 consisting of an air-cylinder connected by levers to said tread-rollers, and actuated by mechanism mediately or immediately operated by said travelling bed, timing the action of said tread-rollers to the action of said traveling bed, substantially as and for the purposes set forth. j

ll. In a jointing-machine, a traveling bed, a series of tread-rollers, consisting of a series of yielding tread-rollers, mounted movably upon the frame of the machine, a frame carrying said rollers, a lever pivoted to said frame and connected at one end with said frame carrying said tread-rollers, and at its other end with a piston ot' an air-cylinder, an air-cylinder carrying said piston, and means for actuating said air-cylinder, consisting of a lever-arm and connecting-rods actuated mediately or immediately by said traveling bed, substantially as and for the purposes set forth.

12. In a jointing-machine, a traveling bed, a clamping mechanism for holding the sections of lumber jointed in place while a succeeding section is being driven to place, consisting of a clamping-section held down upon the upper section ot' the lumber jointed, and provided with transverse arms, air-cylinders for raising and lowering said transverse arms and releasing and gripping said clamping mechanism, actuated mediately or immediately by said traveling bed and synchronizing in action thereto, substantially as and for the purposes set forth.

13. In a jointing-machine, a traveling bed, a set-over, clamp mechanism consisting of a longitudinal clamping-block,transverse arms engaging said clam ping-block and holding the same down in place and releasing the same, air-cylinders for raising and lowering said transverse arms, actuated in connection with the air-cylinder actuating the set-over for lining up the jointed sections with the next succeeding incoming section, substantially as and for the purposes set forth.

1-1. In a jointing mechanism, a traveling bed, a set-over for lining up the jointed sections of lumber with the next succeeding incoming section of lumber, consisting of a transverse cross-head carrying shovers, and an air-cylinder reciprocating said cross-head, which air-cylinder is timed to the traveling bed and mediately or immediately actuated thereby, substantially as a nd for the purposes set forth.

15. In t-he joint-ing machine, a traveling bed, a set-over for lining up the jointed sections of lumber with the next succeeding sectien, and a clamping mechanism for holding the jointed lumber while the next succeeding section is being driven to place, consisting of a cross-head reciprocating transversely over the traveling bed, an air-cylinder actuating the same, and means for actuating said aircylinder connected mediately or immediately with the said traveling bed, and a clampingblock and transverse arms secured thereto, and cylinders provided with pistons raising and lowering said transverse arms and connected directlyv for air-pressure with said cylinder actuating said set-over, substantially as and for the purposes set forth.

16. In a jointing-machine, consisting of a fixed bed and a traveling bed, jointing mechanism adjacent to one edge of said traveling bed for jointing one edge of the lumber-section, a jointing mechanism adjacent to the opposite edge of said traveling bed for jointing the opposite edges of said lumber-section, means for shoving the lumber-sections into line with the first of said jointers, tread-rollers for holding said sections Iirmly upon said traveling bed while being join ted upon the one edge, a set-over for moving said lumber-sections transversely upon said traveling bed and bringing the opposite edge of the lumbersection into line with the second jointing mechanism, and means for holding said sections iirmly down upon the bed while being jointed upon the second edge, substantially as and for the purposes set forth.

17. In a joint-ing-maehine, a fixed bed, a traveling bed, jointing mechanism adjacent to the respective edges of said traveling bed, a set-over for shoving the lumber-sections into line with the first jointing mechanism and tread-rollers for holding the same in line therewith, a second set-over for shoving the lumber-section into line with the second jointing mechanism, and tread-rollers for holding the same in place While being jointed upon the second edge, said jointing mechanism having a continuous action, and said set-overs and said tread-rollers having intermittent ac- IOO IIO

IIS

tion, timed to the forward action of the traveling bed, substantially as and for the purposes set forth.

1S. In a jointing-machine, a traveling bed, a set-over for bringing the jointed sections of lumber into line with the next succeeding or incoming section, consisting of a reciprocating cross-head and shovers, an air-cylinder, timed in its action to the action of the traveling bed, a rack pivoted to the frame of said machine and actuated by the piston of said air-cylinder, a pinion mounted upon a shaft longitudinal to the body of said machine, carried in bearings supported by the frame of the machine, crank-heads secured to said shaft, and connecting-rods connecting said crank-heads with the cross-head of said setover, substantially as and for the purposes setforth. f

19. In a jointing-machine, a xed bed and a traveling bed, the traveling bed carrying pivoted lugs upon the several sections constituting said traveling bed, said lugs being provided with arms carrying trolleys for throwing said lugs in and out of operation, the trolleys of said arms being mounted alternately upon the inner and outer sides of said arms, the one series of trolleys engaging over a track rigidly mounted upon the fixed bed of the said machine, a movable track, movable transversely upon said fixed bed to engage with the other set of trolleys when thrown into line therewith, and means for moving said movable tracks transversely, substantially as and for the purposes set forth.

20. In a jointing-lnachine, a clamp, means for automatically actuating the same, constituting a clamping mechanism for holding the jointed sections in place while the incoming section is being brought to place, and a stop for limiting the forward action of the incoming section of lumber, consisting of a block yieldingly mounted upon a bed-plate of the machine having its upper face in the plane of the surface of the traveling'bed, and means for adjusting the position of said block to different lengths of lumber, substantially as and for the purposes set forth.

21. In a jointing-machine, a fixed bed and a traveling bed, a set-over for lining up the lumber-section with the first jointing mechanism, a jointing mechanism, a series of treadrollers, a set-over for moving the section of lumber transversely upon the traveling bed into line with the second jointing mechanism, a second jointing mechanism,a series of treadrollers for holding the lumber in place, a gluing mechanism for gluing the edges of said lumber-sections successively as they are carried to place, and a clamping mechanism and set-over mechanism for successively j ointing said sect-ions, substantially as and for the purposes set forth.

22. In a jointing-machine, a traveling bed, a set-over, consisting of a cross-head and shoving-blocks, an air-cylinder, actuating said set-over through its piston, and means for timing the action of said cylinder to the action of the traveling bed, and a second cylinder having its piston connected with said crosswhead and constructed to act as a dashpot to limit the rapidity of the action of said set-over, substantially as and for the purposes set forth.

23. In a jointing-machine, the combination of a clamp and means for automatically actuating the same, constituting a clamping mechanism for holding the jointed sections in place while the incoming section is being brought to place, and a stop for limiting the forward motion of the incoming section, substantially as set forth.

24. In a jointing-machine, the combination of a traveling bed adapted to carry pieces of lumber to be jointed, tools for jointing the opposite edges of the pieces of material ar ranged to act in succession, and a reciprocat ing shover, situated between the j ointingtools, longitudinally, and arranged to move transversely of the traveling hed, and to engage with the edge of the piece of lumber which is first dressed or jointed and to transversely move the said material into position to be acted upon by the second set of jointing-tools, and means for actuating the said shover after the first set of tools has nished its work, substantially as set forth.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

WILLIAM A. FIRSTBROOK. 1Witnesses:

D. B. TUTTLE, MINNIE RHnNiscH. 

